请先给出2~4个样例

　　17×300有小数么？

　　910*0.7=637190*0.3=57700*0.1=70320*0.8=256140*0.1=14590*0.3=177160*0.2=32770*0.8=616340*0.5=170430*0.9=387990*0.8=792950*0.4=380290*0.7=203500*0.5=25020*0.6=12750*0.4=300370*0.7=259100*0.8=80400*0.5=200920*0.3=276690*0.3=207100*0.8=80840*0.5=420150*0.6=90280*0.2=56720*0.4=288920*0.8=736540*0.5=270220*0.4=88290*0.3=87680*0.3=204330*0.3=99510*0.2=102830*0.5=415530*0.7=371220*0.1=2210*0.8=8900*0.7=630930*0.1=93840*0.4=336560*0.4=224380*0.3=114620*0.5=310550*0.1=5570*0.5=35510*0.3=153290*0.8=232580*0.6=348640*0.1=64390*0.6=234230*0.7=161330*0.2=66620*0.8=496420*0.8=33610*0.6=6280*0.2=5640*0.2=8910*0.2=182300*0.6=180110*0.1=11780*0.7=54640*0.7=28380*0.2=76350*0.7=245900*0.4=360680*0.9=612940*0.5=470这些都是乘法，也可改为除法：470/0.5=940612/0.9=680